FONV stops responding immediately on launch, even without mods

[ScytaleX]

Okay I'm at wit's end here so I'm hoping someone can help with this. After playing through FONV all the way I decided to try some mods, mostly aesthetic improvement type things. I downloaded everything from the Nexus, installed using NMM, and set the load order according to what BOSS thought was best. I went into FNVEdit and created a merged patch. At first I was getting "Missing master" errors which I quickly realized was due to a few dependencies I hadn't addressed. I did so, recreated my merged patch and tried again, using FOMM this time to verify load order and launch. Then I started getting a new kind of error: the game will load, roll through the title screens until it reaches the Ranger screen, at which point the menu never appears and it stays stuck on that. No error message, the game simply doesn't respond. In fact in looking at it in Task Manager, it goes to "Not responding" IMMEDIATELY after startup. I can't even click through the title screens as normal.

 

I tried deactivating all mods; same problem. I have tried everything relating to similar problems I've seen, most of which have to do with mods and load order. But my game now won't even load without any mods. This happens regardless of where I launch the game from: Steam, FOMM, the actual launcher app. So basically I broke my game :sad:

 

For the record this is my load order. I have verified this with multiple mod managers and BOSS to make sure I had all needed dependencies. There are conflicts in FNVEdit but it doesn't appear to be anything game-breaking. Also, again, this same problem occurs without any mods.

1. FalloutNV.esm
2. DeadMoney.esm
3. HonestHearts.esm
4. OldWorldBlues.esm
5. LonesomeRoad.esm
6. GunRunnersArsenal.esm
7. ClassicPack.esm
8. MercenaryPack.esm
9. TribalPack.esm
10. CaravanPack.esm
11. FCOMaster.esm
12. FCO - Playable Races.esp
13. FCO - GlowingOne.esp
14. EVE FNV - ALL DLC.esp
15. WeaponModsExpanded.esp
16. WMX-DLCMerged.esp
17. WMX-POPMerged.esp
18. WMX-EVE-AllDLCMerged.esp
19. dD - Enhanced Blood Main NV.esp
20. Vurt's WFO.esp
21. MergedPatch.esp

My next step will be to try clean installing everything from scratch but I'm hoping to avoid that as I know removing all the traces of various mods can be a pain. If anyone can offer a solution I'd appreciate it.